Witnessed 4 orange lights, 3 equidistant apart and the 4th light set apart and all travelling low/slow in the night sky and dissapeared

My wife and I were traveling home last night at approximately 23:15, when I noticed in the sky a series of orange lights low in the sky. At first I thought they were lights from a plane, because of the height in the sky. But, I quickly realized that something was different, because there were 4 lights and the color was orange. They couldn't have been lights from a plane. The lights seemed to be traveling slowly, about the same speed as you would see a plan traveling in the sky. 3 of the lights were grouped together and equidistant from each other. The 4th light was set a little further out from the group of the 3, but all traveling in the same plane and at the same speed. I asked my wife to pull and I started to get my iphone ready to see if I could take a video. By the time I got out of the car, the lights started to dim and dissapeared. Almost like the lights were turned off. They did not shoot off in the sky or anything like that, but just dissa! peared. My wife also witnessed the entire event.

All my life I have been the biggest skeptic of "UFO's." But this has changed my perspective on these type of sightings. It was unlike anything that I have ever seen before, and something that I have no explanation for.